Merge pull request #2 from retroryan/master

First pass at testing the UserActor
fix integration test and cleanup actor test
use play config
update tests and add them to the instructions
fix tests
fix test again
fix dup delete
add more details
fix the integration test
fix the integration test again
add more details
use the message param
fix wording
fix the tweets ul
fix code
pass request to index template
fix tests
sync code and tutorial
add the akka-testkit to deps
backport actor changes to tutorial